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User’s Manual
DVR-4TH/8TH/16TH Series
SPECO TECHNOLOGIES 07/10
162
DVR-16TH Alarm I/O
Pin Definition Pin Definition Pin Definition
1
RS485 D+
12
N/A
23
Alarm In 7
2
RS485 D-
13
N/A
24
Alarm In 8
3
Ground
14
N/A
25
Alarm In 9
4
Normal Close A
15
N/A
26
Alarm In 10
5
Common Node A
16
N/A
27
Alarm In 11
6
Normal Open A
17
Alarm In 1
28
Alarm In 12
7
Ground
18
Alarm In 2
29
Alarm In 13
8
Normal Close B
19
Alarm In 3
30
Alarm In 14
9
Common Node B
20
Alarm In 4
31
Alarm In 15
10
Normal Open B
21
Alarm In 5
32
Alarm In 16
11
Ground
22
Alarm In 6